./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:22,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:22,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:04:22,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:22,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:22,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:22,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:22,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:22,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:22,279 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:22,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:22,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:22,281 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:22,281 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:04:22,285 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:04:22,285 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:04:22,285 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:04:22,286 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:04:22,286 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:04:22,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:22,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:04:22,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:22,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:22,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:04:22,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:04:22,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:04:22,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:22,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:22,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:22,289 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:04:22,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:22,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:22,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:22,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:22,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:22,292 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:04:22,292 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d [2024-10-31 22:04:22,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:22,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:22,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:22,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:22,593 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:22,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c Unable to find full path for "g++" [2024-10-31 22:04:24,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:25,049 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:25,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2024-10-31 22:04:25,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/data/ac4cd30ae/256bbb2562974285896d6ee5472d9bf8/FLAG92cdd93fe [2024-10-31 22:04:25,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/data/ac4cd30ae/256bbb2562974285896d6ee5472d9bf8 [2024-10-31 22:04:25,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:25,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:25,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:25,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:25,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:25,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e14ec40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25, skipping insertion in model container [2024-10-31 22:04:25,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:25,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:25,574 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:25,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:25,599 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:25,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25 WrapperNode [2024-10-31 22:04:25,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:25,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:25,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:25,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:25,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,625 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-10-31 22:04:25,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:25,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:25,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:25,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:25,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,646 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:04:25,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:25,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:25,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:25,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:25,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (1/1) ... [2024-10-31 22:04:25,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:25,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:25,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:25,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:25,821 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:25,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:25,912 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:25,913 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:25,931 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:25,931 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:04:25,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:25 BoogieIcfgContainer [2024-10-31 22:04:25,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:25,934 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:04:25,934 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:04:25,939 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:04:25,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:04:25,940 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:04:25" (1/3) ... [2024-10-31 22:04:25,942 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@705d6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:04:25, skipping insertion in model container [2024-10-31 22:04:25,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:04:25,942 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:25" (2/3) ... [2024-10-31 22:04:25,943 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@705d6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:04:25, skipping insertion in model container [2024-10-31 22:04:25,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:04:25,943 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:25" (3/3) ... [2024-10-31 22:04:25,947 INFO L332 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2024-10-31 22:04:26,025 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:04:26,025 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:04:26,025 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:04:26,025 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:04:26,026 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:04:26,026 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:04:26,026 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:04:26,027 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:04:26,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:26,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:04:26,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:26,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:26,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:04:26,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:04:26,062 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:04:26,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:26,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:04:26,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:26,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:26,064 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:04:26,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:04:26,074 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L18true assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 6#L20-2true [2024-10-31 22:04:26,074 INFO L747 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 9#L20true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 6#L20-2true [2024-10-31 22:04:26,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,081 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-10-31 22:04:26,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:26,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668591696] [2024-10-31 22:04:26,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:26,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:26,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:26,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:26,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2024-10-31 22:04:26,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:26,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842259423] [2024-10-31 22:04:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:26,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:26,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:26,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:26,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2024-10-31 22:04:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:26,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67044869] [2024-10-31 22:04:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:26,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:26,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:26,369 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:26,370 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:26,370 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:26,370 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:26,371 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:26,371 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,371 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:26,371 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:26,371 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2024-10-31 22:04:26,372 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:26,372 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:26,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,540 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:26,541 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:26,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:04:26,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:26,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:26,580 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:26,581 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:26,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:04:26,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:26,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:26,625 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:26,625 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:26,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:04:26,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:04:26,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:26,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:26,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:04:26,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:04:26,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:26,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:26,886 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:26,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:26,890 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:26,891 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:26,891 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:26,891 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:26,891 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:26,891 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,891 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:26,891 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:26,892 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2024-10-31 22:04:26,892 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:26,892 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:26,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,933 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,007 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:27,012 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:27,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:27,017 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:27,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:04:27,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:27,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:27,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:27,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:27,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:27,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:27,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:27,055 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:27,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:27,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:27,080 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:27,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:04:27,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:27,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:27,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:27,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:27,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:27,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:27,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:27,123 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:27,146 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-31 22:04:27,146 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:04:27,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:27,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:27,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:04:27,153 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:27,172 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2024-10-31 22:04:27,172 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:27,173 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0, 2*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2024-10-31 22:04:27,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:04:27,211 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:04:27,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:27,278 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:04:27,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:27,299 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:27,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:27,350 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:04:27,352 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,417 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 29 transitions. Complement of second has 6 states. [2024-10-31 22:04:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-10-31 22:04:27,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 2 letters. [2024-10-31 22:04:27,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:27,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-31 22:04:27,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:27,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-31 22:04:27,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:27,428 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2024-10-31 22:04:27,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:04:27,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 9 states and 12 transitions. [2024-10-31 22:04:27,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:04:27,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-31 22:04:27,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-10-31 22:04:27,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:27,437 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-31 22:04:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-10-31 22:04:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-10-31 22:04:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2024-10-31 22:04:27,464 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-31 22:04:27,464 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-31 22:04:27,464 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:04:27,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2024-10-31 22:04:27,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:04:27,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:27,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:27,466 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:27,466 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:04:27,466 INFO L745 eck$LassoCheckResult]: Stem: 89#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 90#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 82#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 83#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 88#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 84#L20-2 [2024-10-31 22:04:27,466 INFO L747 eck$LassoCheckResult]: Loop: 84#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 85#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 84#L20-2 [2024-10-31 22:04:27,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,467 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2024-10-31 22:04:27,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532048150] [2024-10-31 22:04:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:27,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:27,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:27,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2024-10-31 22:04:27,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122528827] [2024-10-31 22:04:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:27,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:27,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:27,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2024-10-31 22:04:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649942941] [2024-10-31 22:04:27,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:27,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:27,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:27,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:04:27,682 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:27,682 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:27,683 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:27,683 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:27,683 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:27,683 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,683 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:27,683 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:27,683 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2024-10-31 22:04:27,683 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:27,683 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:27,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:27,788 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:27,788 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:27,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:27,790 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:27,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:04:27,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:27,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:27,818 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:27,818 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:27,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:04:27,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:27,838 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:27,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:04:27,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:27,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:27,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:04:27,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:27,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:27,889 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:27,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:04:27,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:27,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:28,054 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:28,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:28,059 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:28,059 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:28,060 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:28,060 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:28,061 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:28,061 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,061 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:28,061 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:28,061 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2024-10-31 22:04:28,061 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:28,062 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:28,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,186 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:28,186 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:28,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,189 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:04:28,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:28,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:28,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:28,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:28,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:28,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:28,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:28,219 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:28,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:04:28,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,245 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:04:28,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:28,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:28,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:28,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:28,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:28,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:28,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:28,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:28,267 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:28,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:04:28,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:04:28,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:28,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:28,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:28,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:28,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:28,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:28,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:28,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:28,312 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:28,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:28,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:04:28,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:28,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:28,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:28,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:28,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:28,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:28,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:28,361 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:28,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:04:28,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,382 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:04:28,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:28,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:28,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:28,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:28,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:28,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:28,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:28,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:28,404 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:28,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:04:28,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,425 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:04:28,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:28,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:28,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:28,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:28,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:28,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:28,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:28,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:28,465 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-31 22:04:28,465 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:04:28,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,467 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:04:28,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:28,487 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-31 22:04:28,488 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:28,488 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2024-10-31 22:04:28,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:04:28,512 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-31 22:04:28,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,565 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:28,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,598 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:28,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:28,615 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-31 22:04:28,615 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 6 states. [2024-10-31 22:04:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:04:28,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-31 22:04:28,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:28,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-31 22:04:28,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:28,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-31 22:04:28,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:28,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2024-10-31 22:04:28,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:04:28,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2024-10-31 22:04:28,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:04:28,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-31 22:04:28,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2024-10-31 22:04:28,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:28,672 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-10-31 22:04:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2024-10-31 22:04:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-10-31 22:04:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2024-10-31 22:04:28,675 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-10-31 22:04:28,675 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-10-31 22:04:28,676 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:04:28,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2024-10-31 22:04:28,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:04:28,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:28,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:28,677 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2024-10-31 22:04:28,677 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:04:28,677 INFO L745 eck$LassoCheckResult]: Stem: 163#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 156#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 157#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 162#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 165#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 166#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 158#L20-2 [2024-10-31 22:04:28,677 INFO L747 eck$LassoCheckResult]: Loop: 158#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 159#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 158#L20-2 [2024-10-31 22:04:28,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2024-10-31 22:04:28,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832147131] [2024-10-31 22:04:28,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:28,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:28,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:28,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2024-10-31 22:04:28,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076055364] [2024-10-31 22:04:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:28,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:28,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:28,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,724 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2024-10-31 22:04:28,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184530918] [2024-10-31 22:04:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:28,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:28,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:28,851 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:28,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:28,852 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:28,852 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:28,852 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:28,852 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,854 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:28,854 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:28,854 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2024-10-31 22:04:28,854 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:28,854 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:28,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:28,969 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:28,970 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:28,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:28,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,973 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:04:28,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:28,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:29,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:29,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:29,012 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:29,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:04:29,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:29,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:29,173 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:29,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:29,177 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:29,177 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:29,177 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:29,177 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:29,177 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:29,177 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:29,177 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:29,177 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:29,177 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2024-10-31 22:04:29,178 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:29,178 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:29,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,282 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:29,283 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:29,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:29,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:29,287 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:29,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:04:29,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:29,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:29,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:29,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:29,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:29,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:29,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:29,314 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:29,321 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-31 22:04:29,321 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:04:29,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:29,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:29,324 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:29,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:04:29,326 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:29,342 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-31 22:04:29,342 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:29,342 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2024-10-31 22:04:29,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:04:29,368 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-31 22:04:29,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,461 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:29,477 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-31 22:04:29,478 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 22 transitions. Complement of second has 6 states. [2024-10-31 22:04:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:04:29,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-31 22:04:29,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:29,524 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:29,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,612 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:29,634 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-31 22:04:29,634 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 22 transitions. Complement of second has 6 states. [2024-10-31 22:04:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:29,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:04:29,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-31 22:04:29,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:29,677 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:29,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,755 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:29,772 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-31 22:04:29,772 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 25 transitions. Complement of second has 5 states. [2024-10-31 22:04:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:04:29,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-31 22:04:29,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:29,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:04:29,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:29,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-31 22:04:29,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:29,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2024-10-31 22:04:29,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:04:29,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 21 transitions. [2024-10-31 22:04:29,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:04:29,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-31 22:04:29,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2024-10-31 22:04:29,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:29,824 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-31 22:04:29,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2024-10-31 22:04:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 7. [2024-10-31 22:04:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-10-31 22:04:29,826 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-31 22:04:29,826 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-31 22:04:29,826 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:04:29,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-10-31 22:04:29,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:04:29,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:29,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:29,827 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:04:29,827 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:04:29,827 INFO L745 eck$LassoCheckResult]: Stem: 350#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 351#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 345#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 346#L20-2 [2024-10-31 22:04:29,827 INFO L747 eck$LassoCheckResult]: Loop: 346#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 348#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 346#L20-2 [2024-10-31 22:04:29,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2024-10-31 22:04:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031425171] [2024-10-31 22:04:29,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:29,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2024-10-31 22:04:29,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145586026] [2024-10-31 22:04:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:29,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 3 times [2024-10-31 22:04:29,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788819238] [2024-10-31 22:04:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:29,914 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:29,914 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:29,914 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:29,914 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:29,914 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:29,914 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:29,914 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:29,914 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:29,915 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2024-10-31 22:04:29,915 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:29,915 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:29,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:29,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,007 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:30,008 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:30,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,010 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:04:30,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,027 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:30,027 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:30,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,045 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:04:30,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,065 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:30,065 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:30,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,079 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:04:30,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,115 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:30,115 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:30,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:04:30,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:04:30,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,135 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:04:30,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,148 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:30,149 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:30,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,163 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:04:30,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,186 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:30,186 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:30,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,199 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:04:30,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,235 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:04:30,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:30,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,373 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:30,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,376 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:30,377 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:30,377 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:30,377 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:30,377 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:30,377 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,377 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:30,377 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:30,377 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2024-10-31 22:04:30,377 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:30,377 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:30,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,458 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:30,458 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:30,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,460 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:04:30,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:30,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:30,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:30,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:30,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:30,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:30,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:30,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:30,479 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:30,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:04:30,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,493 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:04:30,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:30,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:30,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:30,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:30,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:30,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:30,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:30,511 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:30,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-31 22:04:30,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,524 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:04:30,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:30,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:30,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:30,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:30,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:30,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:30,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:30,552 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:30,560 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-10-31 22:04:30,560 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:04:30,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,563 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:04:30,565 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:30,579 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-31 22:04:30,579 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:30,579 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y2~0#1 - 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2024-10-31 22:04:30,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:30,598 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-31 22:04:30,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:30,633 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:04:30,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:30,643 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:04:30,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:30,673 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:04:30,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,720 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 19 transitions. Complement of second has 5 states. [2024-10-31 22:04:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:04:30,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2024-10-31 22:04:30,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:30,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-31 22:04:30,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:30,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-31 22:04:30,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:30,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2024-10-31 22:04:30,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:04:30,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 15 transitions. [2024-10-31 22:04:30,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:04:30,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:04:30,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2024-10-31 22:04:30,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:30,725 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-10-31 22:04:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2024-10-31 22:04:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-10-31 22:04:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2024-10-31 22:04:30,730 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2024-10-31 22:04:30,730 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2024-10-31 22:04:30,730 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:04:30,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2024-10-31 22:04:30,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:04:30,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:30,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:30,733 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-31 22:04:30,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:04:30,734 INFO L745 eck$LassoCheckResult]: Stem: 414#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 415#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 409#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 410#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 411#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 418#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 416#L20 [2024-10-31 22:04:30,734 INFO L747 eck$LassoCheckResult]: Loop: 416#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 417#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 416#L20 [2024-10-31 22:04:30,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:30,735 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2024-10-31 22:04:30,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:30,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30580703] [2024-10-31 22:04:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:30,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:30,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:30,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2024-10-31 22:04:30,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:30,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098413240] [2024-10-31 22:04:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:30,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:30,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:30,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:30,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:30,758 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 3 times [2024-10-31 22:04:30,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266755657] [2024-10-31 22:04:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:30,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:30,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:30,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:30,841 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:30,841 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:30,841 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:30,841 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:30,841 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:30,842 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,842 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:30,842 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:30,842 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2024-10-31 22:04:30,842 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:30,842 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:30,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:30,967 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:30,967 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:30,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:30,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:30,970 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:30,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:04:30,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:30,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:30,992 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:30,992 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:31,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,013 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:04:31,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,042 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,042 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:31,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,063 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:04:31,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,083 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,083 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:31,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,104 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:04:31,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:04:31,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,148 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:04:31,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:31,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,425 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:31,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,429 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:31,429 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:31,429 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:31,429 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:31,429 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:31,429 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,430 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:31,430 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:31,430 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2024-10-31 22:04:31,430 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:31,430 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:31,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,560 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:31,560 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:31,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,562 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:04:31,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:31,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:31,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:31,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:31,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:31,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:31,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:31,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:31,583 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:31,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-31 22:04:31,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,603 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:04:31,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:31,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:31,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:31,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:31,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:31,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:31,626 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:31,630 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:31,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,650 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:04:31,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:31,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:31,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:31,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:31,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:31,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:31,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:31,671 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:31,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,685 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:04:31,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:31,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:31,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:31,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:31,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:31,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:31,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:31,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:31,703 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:31,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,742 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:04:31,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:31,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:31,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:31,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:31,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:31,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:31,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:31,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:31,756 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:31,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-10-31 22:04:31,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,769 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:04:31,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:31,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:31,783 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2024-10-31 22:04:31,783 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:31,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:31,792 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2024-10-31 22:04:31,792 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:31,816 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:31,848 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-10-31 22:04:31,849 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-10-31 22:04:31,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,853 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:04:31,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:31,879 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2024-10-31 22:04:31,879 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:31,880 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = -2*ULTIMATE.start_main_~y1~0#1 + 3*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y2~0#1 >= 0] [2024-10-31 22:04:31,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,906 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:04:31,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:31,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:04:31,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:31,977 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:31,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:32,010 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-10-31 22:04:32,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 19 transitions. Complement of second has 6 states. [2024-10-31 22:04:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-10-31 22:04:32,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:04:32,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:32,050 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:32,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:04:32,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,109 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:32,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:32,142 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-10-31 22:04:32,143 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 6 states. [2024-10-31 22:04:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:32,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-10-31 22:04:32,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:04:32,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:32,186 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:32,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:04:32,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,252 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:32,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:32,280 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-10-31 22:04:32,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,316 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 5 states. [2024-10-31 22:04:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-31 22:04:32,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:04:32,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:32,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:04:32,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:32,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:04:32,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:32,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2024-10-31 22:04:32,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:04:32,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2024-10-31 22:04:32,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:04:32,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:04:32,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-10-31 22:04:32,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:32,322 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-10-31 22:04:32,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-10-31 22:04:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2024-10-31 22:04:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2024-10-31 22:04:32,324 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-31 22:04:32,324 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-31 22:04:32,324 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:04:32,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2024-10-31 22:04:32,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:04:32,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:32,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:32,325 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-31 22:04:32,325 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:04:32,326 INFO L745 eck$LassoCheckResult]: Stem: 593#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 594#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 588#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 589#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 590#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 596#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 595#L20 [2024-10-31 22:04:32,326 INFO L747 eck$LassoCheckResult]: Loop: 595#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 592#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 590#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 596#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 595#L20 [2024-10-31 22:04:32,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,326 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 3 times [2024-10-31 22:04:32,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358384292] [2024-10-31 22:04:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:32,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1503545, now seen corresponding path program 1 times [2024-10-31 22:04:32,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314710506] [2024-10-31 22:04:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:32,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash -952421375, now seen corresponding path program 4 times [2024-10-31 22:04:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467915946] [2024-10-31 22:04:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:32,417 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:32,417 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:32,417 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:32,418 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:32,418 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:32,418 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:32,418 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:32,418 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:32,418 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration6_Loop [2024-10-31 22:04:32,418 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:32,418 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:32,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,575 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:32,575 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:32,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:32,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:32,578 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:32,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:04:32,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:32,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:32,614 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:32,614 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:32,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:32,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:32,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:32,639 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:32,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:04:32,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:32,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:32,673 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:32,673 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:04:32,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 22:04:32,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:32,697 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:32,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:04:32,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:32,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:32,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:32,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:32,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:32,759 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:32,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:04:32,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:32,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:32,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-10-31 22:04:32,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,258 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:33,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-10-31 22:04:33,262 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:33,262 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:33,262 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:33,263 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:33,263 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:33,263 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,263 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:33,263 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:33,263 INFO L132 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration6_Loop [2024-10-31 22:04:33,263 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:33,263 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:33,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:33,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:33,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:33,440 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:33,440 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:33,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,444 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:04:33,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:33,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:33,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:33,473 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,498 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:04:33,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:33,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,519 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:33,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,522 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:04:33,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:33,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:04:33,536 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:04:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,540 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:04:33,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:33,545 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:04:33,545 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:33,546 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [] [2024-10-31 22:04:33,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,570 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:04:33,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:04:33,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,621 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:33,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,679 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:04:33,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,716 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 42 transitions. Complement of second has 6 states. [2024-10-31 22:04:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-10-31 22:04:33,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:04:33,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:33,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:04:33,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:33,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 8 letters. [2024-10-31 22:04:33,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:33,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 42 transitions. [2024-10-31 22:04:33,721 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:04:33,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2024-10-31 22:04:33,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:04:33,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:04:33,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:04:33,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:04:33,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:04:33,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:04:33,726 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:04:33,726 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:04:33,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:04:33,726 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:04:33,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:04:33,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:04:33 BoogieIcfgContainer [2024-10-31 22:04:33,739 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:04:33,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:33,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:33,740 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:33,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:25" (3/4) ... [2024-10-31 22:04:33,745 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:04:33,747 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:33,748 INFO L158 Benchmark]: Toolchain (without parser) took 8393.90ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 159.0MB in the beginning and 171.5MB in the end (delta: -12.5MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:33,749 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 123.7MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:33,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.19ms. Allocated memory is still 188.7MB. Free memory was 159.0MB in the beginning and 147.7MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:04:33,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.31ms. Allocated memory is still 188.7MB. Free memory was 147.7MB in the beginning and 146.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:33,751 INFO L158 Benchmark]: Boogie Preprocessor took 29.54ms. Allocated memory is still 188.7MB. Free memory was 146.4MB in the beginning and 145.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:33,751 INFO L158 Benchmark]: RCFGBuilder took 275.36ms. Allocated memory is still 188.7MB. Free memory was 145.2MB in the beginning and 135.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:04:33,752 INFO L158 Benchmark]: BuchiAutomizer took 7805.84ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 135.9MB in the beginning and 171.5MB in the end (delta: -35.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-10-31 22:04:33,752 INFO L158 Benchmark]: Witness Printer took 7.26ms. Allocated memory is still 226.5MB. Free memory is still 171.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:33,755 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 123.7MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.19ms. Allocated memory is still 188.7MB. Free memory was 159.0MB in the beginning and 147.7MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.31ms. Allocated memory is still 188.7MB. Free memory was 147.7MB in the beginning and 146.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.54ms. Allocated memory is still 188.7MB. Free memory was 146.4MB in the beginning and 145.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.36ms. Allocated memory is still 188.7MB. Free memory was 145.2MB in the beginning and 135.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7805.84ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 135.9MB in the beginning and 171.5MB in the end (delta: -35.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 7.26ms. Allocated memory is still 226.5MB. Free memory is still 171.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function y1 and consists of 4 locations. One deterministic module has affine ranking function (y1 + ((long) -1 * y2)) and consists of 4 locations. One deterministic module has affine ranking function (y2 + ((long) -1 * y1)) and consists of 3 locations. One deterministic module has affine ranking function y2 and consists of 4 locations. One nondeterministic module has affine ranking function (y1 + ((long) -1 * y2)) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -2 * y1) + ((long) 3 * y2)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 39 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax155 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf96 smp86 dnf120 smp96 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 111ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:04:33,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd38391-2ec7-46b3-ae8d-bfd0d8bb8029/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE